I have done a few long-term test saves and no question for me the AI is defo better in some areas. They make better transfers and I have seen a few teams focus on snapping up younger players who they build the squad around. Defo an improvement on 23.
Now sadly there are some bugs and issues with the AI where they waste money on far too many players they can't fit into their team. So for now it is kinda one step forward two steps back. But if they fix those issues in future patches it will be the best AI yet. Its not to say its going to be perfect, but its defo moving in the right direction.